Station d'observation ERORUN, chimie de l'eau, bassin versant de la Rivières des Pluies, Ile de la Réunion

Prélèvements physico-chimiques hebdomadaire et mensuel des eaux du bassin versant de la Rivières des Pluies, île de la Réunion

Date (Création): 2016-11-10T08:00:00

Forme de la présentation: Table numérique

But: Caractérisation physico-chimique de l'eau

Etat: Mise à jour continue

A l’origine de

LGSR - Jean-Lambert Join ( Professor )

15, avenue René Cassin , Saint-Denis , Université de la Réunion , 97744 , France

+262 262 93 86 97

A l’origine de

IPGP - Jérôme Gaillardet ( Professor )

1 rue Jussieu , Paris , IPGP , 75238 , France

+33 1 83 95 74 43

Fréquence de mise à jour: Mensuelle

A l’origine de

LGSR - Jean-Lambert Join ( Professor )

15, avenue René Cassin , Saint-Denis , Université de la Réunion , 97744 , France

+262 262 93 86 97

Thème

Alcalinité
Elements
Temperature
Isotopes
pH
Conductivity
Rivières
Eau
Particule
Matériel en suspension

Localisation

Ile de la Réunion
Bassin versant de la Rivière des Pluies

Contraintes d'accès: Restreint

Contraintes d'utilisation: Restreint

Type de représentation spatiale: Vecteur

Dénominateur de l'échelle: 1

Langue: English

Jeu de caractères: Utf8

Catégorie ISO

Eaux intérieures
Environnement

Date de début: 2016

Date de fin: en cours...

Nom du système de référence: EPSG:4326

Ressource en ligne: PlPF1300 ( WWW:LINK-1.0-http--link )

Ressource en ligne: RvMCan ( null )

Ressource en ligne: RvPl100 ( null )

Ressource en ligne: RvPl435 ( null )

Ressource en ligne: RvQuina ( null )

Ressource en ligne: TuRPluie ( null )

Niveau: Jeu de données

Résultat de conformité

Date (Publication)

Généralités sur la provenance: The variables concerned correspond to measurements made in the field (T°, Specific conductivity 25° and pH) during water sampling as well as alkalinity measurements made in the laboratory. The selected quality code is divided into 4 categories coded from 1 to 4: Code 1: correct Code 2: suspicious Code 3: bad Code 4: missing. Field measurements: They are carried out in 2016 and 2017 by a WTW conductivity and pH meter and from 2018 by an integrated "Smart-Troll" probe from the manufacturer INSITU). In both cases, the calibration and calibration protocols of the probes are carried out according to the manufacturer's instructions and at least once every 6 months for the conductivity probe and before each output for the pH probe. In this context, the data obtained with these two devices are considered reliable (code 1). Alkalinity measurements: They are performed in the laboratory by titrimetry within 1 to 2 months after sampling. The quality criterion was assessed as the average of two potential sources of error assessed as follows: - Uncertainty about the evolution of the mineralization of the sample evaluated by the variability of the conductivity measured in the field and that measured in the laboratory at the time of the ErCond= Abs(CondTerrain-CondLabo)/Cond terrain in %. - Uncertainty about the titration evaluated by the varibility of the results obtained by different interpretation methods with respect to the Gran method. ErTitr= EcType (HCO3)/Mean (HCO3 calculated by 4 graphical methods). The proposed qualification is based on the average of these two errors f (ErCond+ErTitr)/2<=5% : Code 1 If 5%<(ErCond+ErTitr)/2<=10% : Code 2 If (If (ErCond + ErTitr)not defined: Code 4